07 72 33 Roof Hatches

07 72 33 Roof Hatches

Specification Details




8.5" x 11"


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Unlimited Projects


07 72 33

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Roof Hatches

Use this CSI 3 part SimpleSpecs™ master specification to specify manufactured roof hatches, either galvanized steel or aluminum, single or double leaf, in ladder, stair, or steep stair (ships ladder) configurations.


Hatches provide for roof access where a penthouse and standard door are not provided.


The current edition of the International Building Code (IBC) requires that ladder access hatches be a minimum of 16 square feet with a minimum opening dimension of 2 feet. It also requires that protective railings be installed where the hatch is located with 10 feet of the roof edge.


Current OSHA requirements state that ladders over 24 feet in length be provided with a personal fall protection system. Refer to SimpleSpecs Master Specification Section 05 50 00 – Metal Fabrications for ladders and fall protection equipment.


Ladder extensions provide assistance in exiting and entering ladder-access roof hatches.


Related SimpleSpecs™ master specification

07 72 23 – Roof Vents

07 72 36 – Smoke Vents




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Adding More Words Does Not Make Specifications More Enforceable.    
Design professionals are accustomed to seeing lengthy project specifications, so why is SimpleSpecs™ so short?
Specifications have grown evermore wordy over the years for several reasons:
  1. The mistaken belief that specifications must be lengthy and legal-sounding to be enforceable.  In fact, quite the opposite is true.  Having shorter, easily understood specifications makes us less likely to have problems in the field.
  2. A belief that having lots of words protects us from a Contactor making mistakes.  There is no way to include enough statements to protect yourself from a bad contractor, regardless of the length of your specification.
  3. Our desire to be in control of the project by specifying means and methods instead of including simple, enforceable statements.
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